CONSOLIDATED CONDENSED STATEMENTS OF EARNINGS - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	May 31, 2024	May 31, 2023	May 31, 2024	May 31, 2023
Income Statement [Abstract]
Sales	$ 36,351	$ 35,415	$ 110,111	$ 103,659
Cost of sales	29,892	28,826	89,840	83,062
Gross profit	6,460	6,588	20,271	20,596
Selling, general and administrative expenses	6,393	7,123	21,165	27,215
Impairment of goodwill	0	0	12,369	0
Equity earnings in Cencora	44	58	164	187
Operating income (loss)	111	(477)	(13,099)	(6,431)
Other income, net	254	268	229	1,812
Earnings (loss) before interest and income tax provision (benefit)	365	(209)	(12,870)	(4,619)
Interest expense, net	113	173	351	425
Earnings (loss) before income tax provision (benefit)	251	(382)	(13,221)	(5,044)
Income tax provision (benefit)	20	(330)	(836)	(1,707)
Post-tax (loss) earnings from other equity method investments	(1)	4	15	18
Net earnings (loss)	230	(48)	(12,370)	(3,320)
Net loss attributable to non-controlling interests	(114)	(166)	(6,739)	(420)
Net earnings (loss) attributable to Walgreens Boots Alliance, Inc.	$ 344	$ 118	$ (5,631)	$ (2,900)
Earnings Per Share, Basic [Abstract]
Total (in dollars per share)	$ 0.40	$ 0.14	$ (6.53)	$ (3.36)
Earnings Per Share, Diluted [Abstract]
Total (in dollars per share)	$ 0.40	$ 0.14	$ (6.53)	$ (3.36)
Weighted average common shares outstanding:
Basic (in shares)	863.1	863.1	862.9	863.1
Diluted (in shares)	864.3	863.8	862.9	863.1